Male Mating Competitiveness of a Wolbachia-Introgressed Aedes polynesiensis Strain under Semi-Field Conditions
Identifieur interne : 002E71 ( Pmc/Checkpoint ); précédent : 002E70; suivant : 002E72Male Mating Competitiveness of a Wolbachia-Introgressed Aedes polynesiensis Strain under Semi-Field Conditions
Auteurs : Eric W. Chambers [États-Unis] ; Limb Hapairai [Polynésie française] ; Bethany A. Peel [États-Unis] ; Hervé Bossin [Polynésie française] ; Stephen L. Dobson [États-Unis]Source :
- PLoS Neglected Tropical Diseases [ 1935-2727 ] ; 2011.
Abstract
Lymphatic filariasis (LF), a global public health problem affecting approximately 120 million people worldwide, is a leading cause of disability in the developing world including the South Pacific. Despite decades of ongoing mass drug administration (MDA) in the region, some island nations have not yet achieved the threshold levels of microfilaremia established by the World Health Organization for eliminating transmission. Previously, the generation of a novel
CP males and F1 male offspring from wild-caught
While laboratory experiments are important, prior projects have demonstrated the need for additional testing under semi-field conditions in order to recognize problems before field implementation. The results reported here from semi-field experiments encourage forward progression toward small-scale field releases.
Url:
DOI: 10.1371/journal.pntd.0001271
PubMed: 21829750
PubMed Central: 3149012
Affiliations:
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Male Mating Competitiveness of a <italic>Wolbachia</italic>-Introgressed <italic>Aedes polynesiensis</italic> Strain under Semi-Field Conditions</title><author><name sortKey="Chambers, Eric W" sort="Chambers, Eric W" uniqKey="Chambers E" first="Eric W." last="Chambers">Eric W. Chambers</name><affiliation wicri:level="2"><nlm:aff id="aff1"><addr-line>Department of Entomology, University of Kentucky, Lexington, Kentucky, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Entomology, University of Kentucky, Lexington, Kentucky</wicri:regionArea><placeName><region type="state">Kentucky</region></placeName></affiliation></author><author><name sortKey="Hapairai, Limb" sort="Hapairai, Limb" uniqKey="Hapairai L" first="Limb" last="Hapairai">Limb Hapairai</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Institut Louis Malardé, Papeete, French Polynesia</addr-line></nlm:aff><country xml:lang="fr">Polynésie française</country><wicri:regionArea>Institut Louis Malardé, Papeete</wicri:regionArea><wicri:noRegion>Papeete</wicri:noRegion></affiliation></author><author><name sortKey="Peel, Bethany A" sort="Peel, Bethany A" uniqKey="Peel B" first="Bethany A." last="Peel">Bethany A. Peel</name><affiliation wicri:level="2"><nlm:aff id="aff1"><addr-line>Department of Entomology, University of Kentucky, Lexington, Kentucky, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Entomology, University of Kentucky, Lexington, Kentucky</wicri:regionArea><placeName><region type="state">Kentucky</region></placeName></affiliation></author><author><name sortKey="Bossin, Herve" sort="Bossin, Herve" uniqKey="Bossin H" first="Hervé" last="Bossin">Hervé Bossin</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Institut Louis Malardé, Papeete, French Polynesia</addr-line></nlm:aff><country xml:lang="fr">Polynésie française</country><wicri:regionArea>Institut Louis Malardé, Papeete</wicri:regionArea><wicri:noRegion>Papeete</wicri:noRegion></affiliation></author><author><name sortKey="Dobson, Stephen L" sort="Dobson, Stephen L" uniqKey="Dobson S" first="Stephen L." last="Dobson">Stephen L. Dobson</name><affiliation wicri:level="2"><nlm:aff id="aff1"><addr-line>Department of Entomology, University of Kentucky, Lexington, Kentucky, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Entomology, University of Kentucky, Lexington, Kentucky</wicri:regionArea><placeName><region type="state">Kentucky</region></placeName></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">21829750</idno><idno type="pmc">3149012</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3149012</idno><idno type="RBID">PMC:3149012</idno><idno type="doi">10.1371/journal.pntd.0001271</idno><date when="2011">2011</date><idno type="wicri:Area/Pmc/Corpus">004389</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">004389</idno><idno type="wicri:Area/Pmc/Curation">004388</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Curation">004388</idno><idno type="wicri:Area/Pmc/Checkpoint">002E71</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Checkpoint">002E71</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Male Mating Competitiveness of a <italic>Wolbachia</italic>-Introgressed <italic>Aedes polynesiensis</italic> Strain under Semi-Field Conditions</title><author><name sortKey="Chambers, Eric W" sort="Chambers, Eric W" uniqKey="Chambers E" first="Eric W." last="Chambers">Eric W. Chambers</name><affiliation wicri:level="2"><nlm:aff id="aff1"><addr-line>Department of Entomology, University of Kentucky, Lexington, Kentucky, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Entomology, University of Kentucky, Lexington, Kentucky</wicri:regionArea><placeName><region type="state">Kentucky</region></placeName></affiliation></author><author><name sortKey="Hapairai, Limb" sort="Hapairai, Limb" uniqKey="Hapairai L" first="Limb" last="Hapairai">Limb Hapairai</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Institut Louis Malardé, Papeete, French Polynesia</addr-line></nlm:aff><country xml:lang="fr">Polynésie française</country><wicri:regionArea>Institut Louis Malardé, Papeete</wicri:regionArea><wicri:noRegion>Papeete</wicri:noRegion></affiliation></author><author><name sortKey="Peel, Bethany A" sort="Peel, Bethany A" uniqKey="Peel B" first="Bethany A." last="Peel">Bethany A. Peel</name><affiliation wicri:level="2"><nlm:aff id="aff1"><addr-line>Department of Entomology, University of Kentucky, Lexington, Kentucky, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Entomology, University of Kentucky, Lexington, Kentucky</wicri:regionArea><placeName><region type="state">Kentucky</region></placeName></affiliation></author><author><name sortKey="Bossin, Herve" sort="Bossin, Herve" uniqKey="Bossin H" first="Hervé" last="Bossin">Hervé Bossin</name><affiliation wicri:level="1"><nlm:aff id="aff2"><addr-line>Institut Louis Malardé, Papeete, French Polynesia</addr-line></nlm:aff><country xml:lang="fr">Polynésie française</country><wicri:regionArea>Institut Louis Malardé, Papeete</wicri:regionArea><wicri:noRegion>Papeete</wicri:noRegion></affiliation></author><author><name sortKey="Dobson, Stephen L" sort="Dobson, Stephen L" uniqKey="Dobson S" first="Stephen L." last="Dobson">Stephen L. Dobson</name><affiliation wicri:level="2"><nlm:aff id="aff1"><addr-line>Department of Entomology, University of Kentucky, Lexington, Kentucky, United States of America</addr-line></nlm:aff><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of Entomology, University of Kentucky, Lexington, Kentucky</wicri:regionArea><placeName><region type="state">Kentucky</region></placeName></affiliation></author></analytic><series><title level="j">PLoS Neglected Tropical Diseases</title><idno type="ISSN">1935-2727</idno><idno type="eISSN">1935-2735</idno><imprint><date when="2011">2011</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><sec><title>Background</title><p>Lymphatic filariasis (LF), a global public health problem affecting approximately 120 million people worldwide, is a leading cause of disability in the developing world including the South Pacific. Despite decades of ongoing mass drug administration (MDA) in the region, some island nations have not yet achieved the threshold levels of microfilaremia established by the World Health Organization for eliminating transmission. Previously, the generation of a novel <italic>Aedes polynesiensis</italic> strain (CP) infected with an exogenous type of <italic>Wolbachia</italic> has been described. The CP mosquito is cytoplasmically incompatible (i.e., effectively sterile) when mated with wildtype mosquitoes, and a strategy was proposed for the control of <italic>A. polynesiensis</italic> populations by repeated, inundative releases of CP males to disrupt fertility of wild females. Such a strategy could lead to suppression of the vector population and subsequently lead to a reduction in the transmission of filarial worms.</p></sec><sec><title>Methodology/Principal Findings</title><p>CP males and F1 male offspring from wild-caught <italic>A. polynesiensis</italic> females exhibit near equal mating competitiveness with F1 females under semi-field conditions.</p></sec><sec><title>Conclusions/Significance</title><p>While laboratory experiments are important, prior projects have demonstrated the need for additional testing under semi-field conditions in order to recognize problems before field implementation. 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<front><journal-meta><journal-id journal-id-type="nlm-ta">PLoS Negl Trop Dis</journal-id><journal-id journal-id-type="publisher-id">plos</journal-id><journal-id journal-id-type="pmc">plosntds</journal-id><journal-title-group><journal-title>PLoS Neglected Tropical Diseases</journal-title></journal-title-group><issn pub-type="ppub">1935-2727</issn><issn pub-type="epub">1935-2735</issn><publisher><publisher-name>Public Library of Science</publisher-name><publisher-loc>San Francisco, USA</publisher-loc></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">21829750</article-id><article-id pub-id-type="pmc">3149012</article-id><article-id pub-id-type="publisher-id">PNTD-D-11-00195</article-id><article-id pub-id-type="doi">10.1371/journal.pntd.0001271</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="Discipline-v2"><subject>Biology</subject><subj-group><subject>Zoology</subject><subj-group><subject>Entomology</subject></subj-group></subj-group></subj-group></article-categories><title-group><article-title>Male Mating Competitiveness of a <italic>Wolbachia</italic>-Introgressed <italic>Aedes polynesiensis</italic> Strain under Semi-Field Conditions</article-title><alt-title alt-title-type="running-head">Male Mating Competitiveness in <italic>Aedes polynesiensis</italic></alt-title></title-group><contrib-group><contrib contrib-type="author" equal-contrib="yes"><name><surname>Chambers</surname><given-names>Eric W.</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref><xref ref-type="corresp" rid="cor1"><sup>*</sup></xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Hapairai</surname><given-names>Limb</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author" equal-contrib="yes"><name><surname>Peel</surname><given-names>Bethany A.</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib><contrib contrib-type="author"><name><surname>Bossin</surname><given-names>Hervé</given-names></name><xref ref-type="aff" rid="aff2"><sup>2</sup></xref></contrib><contrib contrib-type="author"><name><surname>Dobson</surname><given-names>Stephen L.</given-names></name><xref ref-type="aff" rid="aff1"><sup>1</sup></xref></contrib></contrib-group><aff id="aff1"><label>1</label><addr-line>Department of Entomology, University of Kentucky, Lexington, Kentucky, United States of America</addr-line></aff><aff id="aff2"><label>2</label><addr-line>Institut Louis Malardé, Papeete, French Polynesia</addr-line></aff><contrib-group><contrib contrib-type="editor"><name><surname>Aksoy</surname><given-names>Serap</given-names></name><role>Editor</role><xref ref-type="aff" rid="edit1"></xref></contrib></contrib-group><aff id="edit1">Yale School of Public Health, United States of America</aff><author-notes><corresp id="cor1">* E-mail: <email>echambers@uky.edu</email></corresp><fn fn-type="con"><p>Conceived and designed the experiments: SLD BAP LH HB. Performed the experiments: LH BAP. Analyzed the data: EWC LH SLD. Wrote the paper: EWC SLD BAP LH HB.</p></fn></author-notes><pub-date pub-type="collection"><month>8</month><year>2011</year></pub-date><pub-date pub-type="epub"><day>2</day><month>8</month><year>2011</year></pub-date><volume>5</volume><issue>8</issue><elocation-id>e1271</elocation-id><history><date date-type="received"><day>10</day><month>2</month><year>2011</year></date><date date-type="accepted"><day>24</day><month>6</month><year>2011</year></date></history><permissions><copyright-statement>Chambers et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.</copyright-statement><copyright-year>2011</copyright-year></permissions><abstract><sec><title>Background</title><p>Lymphatic filariasis (LF), a global public health problem affecting approximately 120 million people worldwide, is a leading cause of disability in the developing world including the South Pacific. Despite decades of ongoing mass drug administration (MDA) in the region, some island nations have not yet achieved the threshold levels of microfilaremia established by the World Health Organization for eliminating transmission. Previously, the generation of a novel <italic>Aedes polynesiensis</italic> strain (CP) infected with an exogenous type of <italic>Wolbachia</italic> has been described. The CP mosquito is cytoplasmically incompatible (i.e., effectively sterile) when mated with wildtype mosquitoes, and a strategy was proposed for the control of <italic>A. polynesiensis</italic> populations by repeated, inundative releases of CP males to disrupt fertility of wild females. Such a strategy could lead to suppression of the vector population and subsequently lead to a reduction in the transmission of filarial worms.</p></sec><sec><title>Methodology/Principal Findings</title><p>CP males and F1 male offspring from wild-caught <italic>A. polynesiensis</italic> females exhibit near equal mating competitiveness with F1 females under semi-field conditions.</p></sec><sec><title>Conclusions/Significance</title><p>While laboratory experiments are important, prior projects have demonstrated the need for additional testing under semi-field conditions in order to recognize problems before field implementation. The results reported here from semi-field experiments encourage forward progression toward small-scale field releases.</p></sec></abstract><abstract abstract-type="summary"><title>Author Summary</title><p><italic>Aedes polynesiensis</italic> is the primary mosquito vector of lymphatic filariasis (LF) in the island nations of the South Pacific. Control of LF in this region of the world is difficult due to the unique biology of the mosquito vector. A proposed method to control LF in the Pacific is through the release of male mosquitoes that are effectively sterile. In order for this approach to be successful, it is critical that the modified male mosquitoes be able to compete with wild type male mosquitoes for female mates. In this study the authors examined the mating competitiveness of modified males under semi-field conditions. Modified males were released into field cages holding field-collected, virgin females and field collected wild type males. The resulting proportion of eggs that hatched was inversely related to the number of modified males released into the cage, which is consistent with the hypothesized competitiveness of modified males against indigenous males. The outcome indicates that mass release of modified <italic>A. polynesiensis</italic> mosquitoes could result in the suppression of <italic>A. polynesiensis</italic> populations and supports the continued development of applied strategies for suppression of this important disease vector.</p></abstract><counts><page-count count="6"></page-count></counts></article-meta></front></pmc><affiliations><list><country><li>Polynésie française</li><li>États-Unis</li></country><region><li>Kentucky</li></region></list><tree><country name="États-Unis"><region name="Kentucky"><name sortKey="Chambers, Eric W" sort="Chambers, Eric W" uniqKey="Chambers E" first="Eric W." last="Chambers">Eric W. Chambers</name></region><name sortKey="Dobson, Stephen L" sort="Dobson, Stephen L" uniqKey="Dobson S" first="Stephen L." last="Dobson">Stephen L. Dobson</name><name sortKey="Peel, Bethany A" sort="Peel, Bethany A" uniqKey="Peel B" first="Bethany A." last="Peel">Bethany A. Peel</name></country><country name="Polynésie française"><noRegion><name sortKey="Hapairai, Limb" sort="Hapairai, Limb" uniqKey="Hapairai L" first="Limb" last="Hapairai">Limb Hapairai</name></noRegion><name sortKey="Bossin, Herve" sort="Bossin, Herve" uniqKey="Bossin H" first="Hervé" last="Bossin">Hervé Bossin</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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